The term 'Military Topper' refers to a type of headgear worn by military personnel. The most common type of Military Topper is the SHAKO, which is a tall, cylindrical hat with a visor and a plume or feather on top. It is typically made of felt or leather and is usually adorned with a badge or insignia. The SHAKO was originally used by European armies in the early 19th century and has since become a popular choice for ceremonial dress in many militaries around the world.